Maria sells paintings in an art gallery. she earns $375 each week plus a commission equal to 2.5% of her sales. this week her is goal is to earn at least $500. what is the minimum amount of sales she must have this week to achieve her goal?

She must at least sale $5000 worth of painting

Step-by-step explanation:

Maria sells painting in a art gallery . she earns $ 375 each week plus a commission of 2.5 % of her sales.  Her goal is to earn  at least $500 .

The minimum amount of sales she must have this week to achieve her goal can be calculated as follows:

let a = sales

2.5% = 2.5/100 = 0.025

375 + 0.025(a)  ≥ 500

0.025a ≥ 500 - 375

0.025a ≥ 125

divide both sides by 0.025

a ≥ 125/0.025

a ≥ 5000

She must at least sale $5000 worth of painting

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )